Weighing-scale.



No. 883,873. PATENTED 00123, 1906. J. E. COGHRAN & O. L. PLUMTREE.

WEIGHING SCALE.

APPLICATION FILED AUG.14, 1905.

s SHEETS-SHEET 1L PATENTED 00$. 23, 1906. "I" E. GOGHRAN & 0. L. PLUMTREE.

WEIGHING- SCALE.

APPLICATION FILED AUG. 14, 1905.

3 SHEETS-SHEET 2.

No. 833.873. PATENTED OCT. 23, 1906. J. E. OOGHRAN & 0. L. PLUMTR-EE.

WEIGHING SCALE.

APPLICATION FILED AUG. 14, 1905.

3 SHEETSSHEET 3.

an or: United States, residing at Ci1l0 count of Cool and f i -nois, nvented a new and useinl in provenient in v eighing-Scaies, oi which the following is specification.

1 CHESS OZ merchandise in which merchandise pan or platter pendulum-like weight; has for its object to provide cale of this character wlnc will pos see me maximum of accuracy and convenient in use and simple and dnrabie in constrnction.

/Vith a view to the attainment of hese ends and the accomplishment oi certain other objects which will hereinafter appear the invention consists the features of novelty in the construction, combination, and

rangement of parts, which will now be described with reference to the, accompanying drawings and more particularly pointed out in the claims.

in the said drawings, Figure l is a vertical longitudinal sectional view of a scale embodying this invention. Fig. 2 is an enlarged side elevation of a ortion of the mechanism hereinafter descri ed. Fig. 3 is a cross-section thereof on the line 3 3, Fig. 2. Fig. 4L- is a side View of the same mechanism looking from the right in Fig. 2. Fig. 5 is a view similar to Fig. 1, showing certain modi- "fications hereinafter described. Fig. 6 is a plan view of the formshown in Fig. 1 with the casing in section. Fig. 6 is an enlarged detail section of a portion of the dash-pot and its connecting means. Fig. 7 is a side elevation of the registering cylinder or index used with the form shown in Fig. 5. Figs. 8 and 9 are views of further modified forms, 8 being a vertical section, and 9 a plan section, on the line 9 9, Fig. 8.

1 is the merchandise pan or platform supported by a standard 2 in any suitable man her-as, for example, by pivoting the standard. to the scale-beam 3 near its upper end and at its lower end to a pivoted arm 4, constituting a parallel movement for maintainof any suitable form, this rod 8 passes through two slides 12, con'ii guided hy vertical ways 13 1%, seem table a frame 15 Within a cas f which ca es mechanism for o actuating th poi ters or i r e:-; s of t fl 1 L w i scale, two or the latt l teing shown at o -t .C. .L 1,, '2 i on opnos ts sides 01 the casing in in cornice tion two dials 2i} i 8 is provided with s supported upon the rod at its collar 22 and bears at its the under side of the slide 1 desired, limited in its m merit the rod 8 by a stop-pirifES.

When a weight is imposed upon the o A form 1 the rod 8 is pulled downwardly, the slides l1 12 to run between their guhieways i3 14-.

This downward motion imparted directly to the siide i2 by the pressure of the collar 2'2, and the downward movement of the slide 12 is imparted to the slide ll directly by a link or suitable connection 24, the spring 21 serving merely as a means of spacing the two guides 11 12 with respect to each other, making them accurately responsive to the movement of the rod 8 without having the joint or connection between the rod and said slides so rigid or tight as to interfere with free rotary movement of the slides 11 12 on the rod 8 when the casing 16 is rotated on its vertical axis for presenting either dial in an desired di rection most convenient for rea ing, it being observed that the casing 16 is formed with a neck 25, journaled on a hollow standard 26 on the main casing of. the scale and upwardly through which standard passes the rod 8. It will thus be seen that While the downward movement of the rod 8 is im arted directly to the slides 11 12 bythe co ar 22 and the sto -pin 23, if the latter be employed, and in an event by the connection 2 the upward motion of the rod 8 is imparted to these slides through the intermediary or" the spring 21, which bears directly against the under side of the slide 11 and lifts the slide 12 through the medium of the connection 24.

The movement of one of these slides is imparted to the pointers or indexes 17 18 through the intermediary of the shaft 27, on which te indexes are secured, a pinion 28 011 said shaft and a rack-bar 29 engaging the pinion and having pivotal connection with the slide 11, so that it will move vertieally with the slide and may be maintainoi in accurate but easy contact with the pinion by a laterally-extended weight 30. v'l' heo ll e casing 16 is rotated, it will be seen that inasmueh as the rod 8 is situated on the vertical axis of the casing all of the mechanism contained witl in tie easing, including the rackbar 29 and its associated parts, will revolve around the rod 5? and will be in readiness to perform their allotted functions in any position in which the casing 16 may be left.

The downward movement of tli e scale 10 or 3 platform 1 is resisted by a pendulum-weigl.t 31, secured to the lower end of an arnr32, depending from a suitable rocker-shaft 33,ivl ieh also carries an involute cam 34, the beam 3 be ing connected to tl is cam by means of a strap 35, supported on the working surface or periphery thereof. 1

S6 is a tare-beam, which is in the form of a rotary screw, supported in suitable bearings 3. and held against longitudinal movement by collars or shoulders 35 one end of the serew having an operating-knob 39. (in this beam is mounted av weight ll) in which the serew' is screwtlireaded, and entering the side of the weight is a rib or iii! ll formed along the bottom of the scale-beam 3, so that as the screw 36 rotated the weight ll) will be moved longitudinally thereof, while held rotating tlerewith by the lin sl. A lis any suitable counterlnilanee mounte l 3am and susceped on the rear end oi tn tib e of adjustine by a. screw 43.

- the form of the irention shown in Fig. 5 the hollow standard 1 ival easii it. which is izontal position and within d a rotary cylinder on tnereto a apertures 46.

1 her; he sunder is .indrr by 1 weight 63.

He indicated the numerals pan the

with the pinion. In order that the beam 3 may quickly find its point of rest after being subjected to oscillation by the motion of the platform 1, it is under tle control of a dash pot comprising a cvlinder 5], pivoted by a link 52 to tle scale-beam and Working over a piston 53, pivoted in t e base 6, thus allowing ti e beam the requisite freedom of movement, wlile preventing undue vibra tion.

in the form ol the invention shown in Figs.

I 8 and ll the pan or platform l is supported by a standard 54, wl ich is laterally deflected to tl e left at a point witl in the casing 55 and pivoted to link 57, wl'ence it extends downwardly and supported upon a laterallyextending beam 55%, and the free end of beam 58 is suspended from strap 35. Pivoted to tie standard is a rack-bar 60, which engages pinion 61, on index-arbor '62, one end ol the rat-lobar being l'ree and held in contact with the pinion 61 by a lateally-extending The dash-pot is provided with a valve, wi ich opens l reely when ti 0 weight is imposed on the pan. but which closes when the weig" t is removed.

What we elaim as our joint invention, and desire to secure by Letters Patent, is-

l. in a weighing-scale, the combination o'la dial and an index, one ol which is movable relatively to the other in an upright plane, and both of which are rotatable around an axis in a plane disposed at an angle to the lirst plane of movement, a merchandise plat lorm or pan, and an operative connection, with reference to which said dial and index are rotatable aboul sail; upright :1Xis,l rii11-- parling the movement oi ll pan or pla'tlorm. to the movable one oi lhe 'lirst two said mem bers 'l'or moving the some in a plane parallel wit ll be other member.

2. in a w "l1lllf ';-;(zll a dial arranged in no u;

table on an upright an pivoted to revolve on i. i t i a m, 11H .lll d t'l -Ill pdidilllhltil Lll d1 met ()1 til .ihli, said pointer being a so adapted to about llie lirst said unis, a mereha form or pan, and men \l'l.i"l. -ti "lltll and I with relation to the other, and both of which are rotatable around an upright axis, a pinion for moving the movable one of the" first two said members, a rack-bar engaging said pinion, a rod arranged on said upright axis, a slide journaled on said rod and connected with said rack-bar, a merchandise platform or pan, and means operatively connecting said platform or pan with said rod;

5. In a weighing-scale, the combination of a dial and an index, one of which is movable relative to the other, and both of which are rotatable about an upright axis, a pinion for moving the movable one of the first two said members with relation to the other, a rackbar engagin said pinion, two slides, to one of which sai rack-bar is connected, a rod ar ranged on ,said upright axis, and on which rod said slides are journaled, a spring supported on said rod and serving to support the upper one of said slides, means for causing said slides to descend with said rod, a merchandise platform or pan, and means operatively connecting said rod with said pan.

6. In a weighing-scale, the combination of a dial and an index, one of which is movable with relation to the other in an upright plane, and both of which are rotatable about an upright axis and in a different plane to the plane of the first movement, a merchandise platform or pan, a beam on which said pan or platform is supported, operative connection between said beam and the movable one of the first two said members for imparting the said relative movement thereto, arranged porting the same on the involute face of the cam.

7. In a weighing-scale, the combination of a dial and index, one of which is movable with relation to-the other, and both of which are rotatable around an upright axis, a rod operatively connected to the platform, a slide journaled on the rod, guides for said slide, and means operativel related to the slide and one of the first two said members for' movin the latter with relation 'to the other memier when the slide is operated.

8. Ina weighing-scale, the combination of a dial and index, one of which is movable with relation to the other, and both of which are rotatable around an upright axis, a plat form, a rod operatively connected to the platform, guides carried by the frame, a slide swiveled to the rod and movable between said guides, and a connection between the slide and one of the first two of said members for moving the same with relation to the other member when the platform is moved.

9. Ina weighing-scale, the combination of a dial and index, one of which is movable relative to the other, and both of which are rotatable about an upright axis,a pinion for moving the movable one of the first two members with relation to each other, a rod arranged on said upright axis, slides journaled on said rod, a spring supported on the rod and serving to support one of the slides, a rack-bar pivotally supported by one of the slides for engaging the pinion, means for retaining the rack in en agement therewith, I

means for causing the s ides to descend with the rod, a merchandise platform or support, and means operatively connecting the rod and platform.

In witness whereof we have hereunto set our hands, this 5th day of August, 1905, in the presence of the subscribing witnesses.

JOSEPH E. COCHRAN. OLIVER L. PLUMTREE. Witnesses:

FRANCIS A. HOPKINS, E. C. SEMPLE. 

